The Schneider Electric Square D 8539SDR42V03 is a Type 2, non-reversing motor starter designed for reliable motor control and protection. This unit integrates overload and short-circuit protection into a single, compact enclosure, simplifying installation and reducing panel space. Manufactured to NEMA standards, it is suitable for a wide range of industrial applications requiring robust motor starting and safeguarding.

Technical details

• Series: Square D 8539
• Type: Type 2 Motor Starter
• Configuration: Non-reversing
• Enclosure Type: Open (requires separate enclosure for NEMA 1, 3R, 12, or 4 ratings)
• Overload Relay Type: Thermal, Class 20
• Short Circuit Rating: 50,000 Amps at 480V AC (when used with appropriate fuses or circuit breaker)
• Voltage Rating: Designed for use in systems up to 600V AC
• Control Circuit Voltage: 120V AC (coil voltage)

Applications & compatibility

This motor starter is commonly employed in applications such as pump controls, fan systems, conveyor belts, and general machinery where precise motor starting and overload protection are critical. It is compatible with standard NEMA motor control systems and can be integrated into existing control panels.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D 8539SDR42V03 or contact our technical team for cross-reference assistance with compatible motor control components.